Nut-lock.



C. G. JONES.

NUT LOCK.

APPLICATION FILED MAY 22, 1911.

1,060,094. 7 Patented Apr. 29, 1913.

lmwtm vi/tmeaaao A CHRISTOPHER G. JONES, OF COWEN, WEST VIRGINIA.

NUT-LOCK.

To all whom it may concern Be it known that I, Crmrs'rornnn G. Jones, acitizen of the United States, residing at Cowen, in the county of"Webster and State of Vest Virginia, have invented certain new anduseful Improvements in Nut-Locks; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in nut locks.

One object of the invention is to provide a nut and bolt having a simpleand improved locking mechanism, whereby the nut may be securely fastenedin its adjusted position on the bolt, said mechanism being readilyreleased to permit the nut to be removed when desired.

With this and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully de scribed and particularly pointed out in theappended claim.

In the accompanying drawings: Figure 1 is a perspective view of a boltand nut showing my improved lockin mechanism applied thereto and theparts in locked position; Fig. 2 is an end view of the same; Fig. 3 is asimilar view Showing the lock- -1ng member of the nut in open position;

Fig. 4. is a longitudinal sectional view through the nut and thefastening mechanism for the locking member taken on the line i-4 of Fig.2; Fig. 5 is a detail view of the key for fastening the locking memherin operative position.

Referring more particularly to the drawings, 1 denotes the bolt in theouter port-ion of the threaded end of which is formed a series ofgrooves producing longitudinally disposed ratchet shaped teeth 2, thepurpose of which will be hereinafter described.

Adapted to be screwed onto the bolt is a nut 3. One side of the outerend of the nut is cut away from the outer side to the center of the nutto form a right angular recess 4:. In the remaining side of the nut andat one side of the bolt hole is formed a bearing notch 5. On theopposite side of the bolt hole from the notch 5 is formed a rightangularly projecting locking lug 6.

Adapted to be engaged with the recess 4 is a locking member 7 comprisinga block Specification of Letters Patent.

Application filed May 22, 1911.

Patented Apr. 29, 1913.

Serial No. 628,751.

lug 6 on the adjacent portion of the nut,

and in said arms 10 are formed alined key receiving holes 11 which, whenthe locking member7is in a closed or operative position, are adapted toregister with a hole 12 formed in the locking lug 6. When the look ingmember is thus brought in operative position, a key 13 is insertedthrough the alined holes 11 and 12, thereby securely fastening thelocking member in operative posi tion. The key 13 is formed of malleablemetal and when driven through the holes the inner end of the key isengaged with the angular surface of a clenching recess 14:, whereby saidend of the key is turned or upset and the key thus prevented from beingcasually disengaged from the holes and thus releasing the lockingmember. By forming the key 13 of malleable metal, the clenched end ofthe same may be straightened and the key withdrawn by the applica tionof a suitable instrument, thus permitting the locking member to bereleased when desired.

In the unthreaded bolt o-pening of the locking member or block 7 isformed a series of longitudinally disposed ratchet shaped ribs or teeth15, which when the locking member is in a closed or operative positionare adapted to engage longitudinally disposed ratchet shaped lockingteeth or ribs 2 formed in the adjacent port-ion of the bolt as shown. Bythus bringing the toothed surface of the nut into engagement with thetoothed portion of the bolt, and fastening the locking member inoperative position, in will be seen that the nut is positively securedagainst being unscrewed or casually removed from the bolt.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Having thus described my invention, what I claim is:

In combination with a combined screw threaded bolt having longitudinalgrooves forming ratchet teeth, of a nut composed of two parts, the bodyportion of which is provided with internal screw threads for engagementwith the threads upon the bolt, one side of the outer end of the nutbeing cut away and having a centrally positioned projecting locking lugforming a continuation of one side of the nut, a locking member adaptedto completely fill the cutaway portion in the nut, the body portion ofthe latter having an angular exposed cavity formed therein, said lockingmember having a lug received by a corresponding recess in the nut andpivoted therein, the free end of the locking member being forked forreceiving the locking lug, and also provided with teeth for interlockingengagement with the ratchet teeth on the bolt, and a key adapted to beforced through the alining openings in the forked end of the lockingmember and the lug projecting from the nut and deflected by the angularexposed cavity formed in the nut, to lock the nut in an adjustedposition upon the bolt.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit.-

nesses.

CHRISTOPHER Gr. JONES.

Witnesses:

L. A. LYNCH, W. F. HOLLISTER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

